Dispensing apparatus for carbonated beverages



May 22, 1928. 1,670,340

A. W. CARTWRIGHT DISPENSING APPARATUS FOR CARBONATED BEVERAGES Filed April 9, 1927' 2 Sheets-Sheet 2 99999999979997?) 58 63 3i 55 13 l \X 3? 3122 gm :5 5% x '2 1.5; Q 42 5% I 'l/l/ Ila Patented May 22, 1928.

UNITED STATES PATENT OFFICE.

ARTEUR QCARTWRIGHT, or sou'rrr EUCLID, 01110, AssIeNoR T0 RICHARDSON coR PORATION, or ROCHESTER, NEW YORK, A CORPORATION or NEW YORK.

DISPENSING APPARATUS FOR-CARBONATED BEVERAGES.

Application filed April 9,

This lnvention relates to d spensing apparatus for carbonated beverages, and has particular reference to the general type of apparatus illustrated in Humphrey Patent No. 1,546,7 33, July 21, 1925, and in the pending application of Harry J. McCue, Serial N 0. 173,167, filed March 5, 1927.

The purpose of the invention ,is to provide a simple and efficient valve control mechanism in the general type of dispenser referred to, wherein beverage isdrawn from both a liquefying chamber and direct from a source ofhigh pressure supply, and a more specific object is to obtain the desired results insuch a way as to assure at all times a uniform 'proportioning between the liquefied or less hi hly carbonated, and more highly carbonated supplies so as to always serve a beverage of a standard degree of carbona} tion or eflervescence. Another purpose of the invention is to afford a structure such that the beverage is automatically sprayedintothe top of an inverted transparent display container as thebeverage is drawn for serving, and also permitting a continuous spray discharge into the transparent container at times" when the beverage is not being, drawn, if this is desired.

An additional purpose of the invention is to afford simpleand efficient means for obtaining a predetermined variation or adjustmentof the supply of, beverage coming from the liquefying chamber in case it is desired to effect a change of proportions betweenthe high pressure supply which is constant and the supply from theliquefying chamber which is variable, but which when once set. always gives the same proportlons asthe drink is served.

Stillaoturther object of the invention is to afford a construction that permits the high pressure supply. when its control valve is opened, to travel both to the top ofthe transparent display container, where it is discharged against the sides thereof, and also into the outlet valve housing which communicates with the beverage supply in the liquefying chamber, thus causing a certain amount of the more highly carbonated beverage to be discharged directly into the body of the liquid in the bottom of the lique- :fying chamber, thereby enlivening and keep- I 1927. Serial No. 182,476.

ing the latter me more agitated andefiervescent state than otherwise.

' To these and other ends, the invention consists in, the construction and arrang ment of parts that will appearclearly from the following description when read in con unct1on with the accompanying drawin s,

Figure 2 is a detail vertical sectional View on line28 ofFigure. 1;

Figure 3 is an enlarged vertical sectional View on line 3-3 of Figure 2;

Figure 4 is a detail vertical sectional view on line 44 of Figure 3, and a y Figure 5 is a detail elevation with the outlet valve housing removedg y The invention may be carried out in a number of different ways, and in order to illustrate one practical exemplification, it is disclosed in conjunction witha. type of carbonated beverage dispenser including a transparent display container into which the charged beverage can be, sprayed, and an the novel features being pointed out in t e dispenser showing applied thereto a preferred embodimentof thepresent invention;

overflow pipe by which it can be returned to Y the source ofsupply and circulated when it is notdrawn from 'thecontainer as fast as it enters, although 'it will be obvious that the inventioncanbe applied in other Ways than herein specifically'set up. i

In the structure referred to, there is a liquefying chamber which includes a receptacle 1 suitably mounted and attached on a base 2, and an inverted bowl-like display container 3 which is preferably transparent and rests upon a cover. 4 which surmounts the receptacle 1 and also an outer receptacle or container 5, a cooling chamber .6 being thereby afforded between the inner and outer receptacles 1 and 5.

The transparent display container 3 and cover tare held in fixed relation on the receptaclesl and 5 through the instrumentality of a cap 7 which has threaded engagement with the upper end of a pipe 8, the latter I through the pipe and discharged in a spray through openings 11 in the coupling 9 against the side walls of the container 3, whence it flows down into the bottom of the chamber and is liquefied, being drawn oil as desired through one or other of the discharge faucets that will be referred to PIG- ently.

The discharge pipe 10 leads to a high pressure casing 12 to which the beverage is supplied through a pipe 13 from a carbonator or other suitable source of high pressure supply,"while 14 designates the overflow pipe carrying the surplus supply of beverage in the liquefying chamber back to the carbonator or other source of supply, thus maintaining a continuous circulation if a continuous spray into the container 3 is desired. 15 is a clean-out drain for the receptacle 1, and 16 and 17 designate inlet and outlet pipes for maintaining a continuous circulation of a cooling medium in the cooling chamber 6. A mechanism for controlling supply of the highly carbonated beverage to the top of the display container and for drawing off a drink of given proportions as between the direct supply from the high pressure supply and the supply from the liquefying chamber, will now be described in detail.

\Vhile Figure 1 illustrates two discharge faucets, one opposite the sides of the dispenser, both are connected with the high pressure casing 12 in the same manner and by similar valve mechanism, and it will therefore be necessary to show and describe only one of these, as in Figures 2 to 5 inclusive. Referring in detail to these particular figures, the high pressure casing 12 includes an inlet chamber 18 and a discharge passage 19. The latter is normally closed by the valve 20. mounted on the end of valve rod 21, which latter is movable in a sleeve 22 fixedly secured within the high pressure casing. The sleeve 22 has a series of ports 23 which permit the passage of liquid from the interior thereof upwardly to the discharge passage 19 when the valve 20 is opened, and under such conditions the high pressure supply of beverage an pass from pipe 13 through ports 23 to discharge passage 19. thence to discharge pipe 10 and out into the upper portion of the display container 3, whence itscttles into the bottom of the receptacle 1 and is there liquefied or freed from more or less of its carbonic acid gas 25 dlesignates the outlet valve housing and 2Gis the main outlet valve which is opened to permit drawing off the beverage for serving a drink. said; valve being actuatedby an operating device in theform of a ,handle 27 and an extension or ar m..28.that engages a recess 29. in the valverod that carries the valve 26. The arm 28' has a slight play or lost motion in the recess 29 for a purpose that will appear presently. The valve lions ing 25 is secured by a sleeve 31 on to a shoulder 32 of a fitting 33 that extends into the dispenser through the receptacles 1 and 5 in the manner shown in Figure 3, and is held by suitable nuts 34. The supply of liquefied beverage in the bottom of the container ordinarily covers the fitting 33, filling the space between said fitting and the high pressure casing 12, and flowing thence into the valve housing 25 already described, where its furthertravel is checked by the valve 26. It is desirable to provide. means for varying the supply or amount of beverage from the lirpicfying chan'ibcr in proportion to the more highly carbonated sup ply, and to accomplish this, fitting includes a wall or partition having a series of openings 36, each being adapted to receive a threaded plug and by securing one or more of such plugs in said openings, it is possible to modify the amount of beverage drawn from the liquefying chamber, and to obtain just the desired proportioning or mixing between the more highly and less highly carbonated components of a drink. The more highly carbonated supply passes to the outlet valve housing 25 around the valve rod 21 already n'ientioned, and also around a collar 37 that is movable with the valve rod in the sleeve 22, the amount of beverage thus supplied being dependent on the amount of spacing between the collar 37 and the surrounding sleeve 22. 38 is a spring located between collar 37 and a shoulder 3!) on sleeve 22 and acting to hold the valve 20 normally in closed position, while is a, stop secured to the end of the valve rod 21 and acting to hold the collar 37 in place thereon. -11 is a spring acting normally to holdthe outlet valve 26 closed.

\Vith the parts in theposition shown in Figure 3, when it is desired to deliver a. drink, the handle27 is pulled forwardly or to the left with reference to said figure, and acts initially to move stop 40 inwardly and with it the valve 20, opening the latter. The more highly carbonated beverage supply then passes to the top of. the display container through ports 2 passage 10 and pipe 1) as already described. and also a part of said highly carbonated supply passes longitndi' nally around the valve rod 21 and between it and the sleeve and thence around the collar 37 into the outlet; valve housing 25, whence it can return through openings 36 into the supply of liquefied beverage in the bottom of the container to enliven the same. Further movement of the handle 27 causesthe arm 28 to move the valve rod 30 endwise, openingthe outlet valve 26 and thus'permitting drawing otl a supply of beverage which al ays contains a, predetermined proportion between the supply from the liqucfying chamber and the supply. from. the high pressure chamber 18. If at any time it is desired toefi'ect a continuous circulation of the beverage for display purposes withinthe coming within the purposes of the improvement or the scope of the following claims.

I claim:

1. A dispensing apparatus for carbonated beverages comprising a liquet'ying chamber, an outlet valve, an outlet housing for said outlet valve having communication with the liquefying chamber, a high pressure casing, an inlet pipe leading to the high pressure casing, a discharge pipe leadi'ngfrom the high pressure casing to the top of the liquefying chamber, and a high pressure valve normally closing communication between the high pressure casing and the discharge pipe and operable automatically in advance of the outlet valve to permit passage of liquid from the high pressure casing to the discharge pipe.

. 2. A dispensing apparatus for carbonated beverages comprising a liquei'ying chamber, an outlet valve, an outlet housing for said outlet valve, a wall separating the outlet housing from the liquet'ying chan'iber and having a series of openings therein, closures for said oiienin s )ermittin Jredetermine'd h C adjustment of the volume of liquid passing from the liquefying chamber to the outlet housing, a high pressure casing, an inlet pipe leading to the high pressure casing, a discharge pipe leading from the high pressure casing to the top of the liquefying chamber, and a high pressure valve normally closing communication between the high pressure using and the discharge pipe and operable automatically in advance of the outlet valve to perm-it passage of liquid from the high pressure casing to the discharge pipe.

3. A. dispensing apparatus for iarbonated.

beverages comprising a liquefying chamber,

an outlet valve, an outlet housing for said outlet valve having communication with the lique'fying chamber, a high pressure casing having restricted communication with the outlethousing, an inlet pipe leading to the high pressure casing, a discharge pipe leading from the high pressure casing to the top of the liquettying chamber, and a high pressure valve normally closing communication between the high pressure casing and the discharge pipe and operable automatically in advance of theoutlet valve to permit passage of liquidfrom the high pressure. casing to the discharge pipe and to the outlet housmg. y a

I i. A dispensing apparatus for carbonated beverages comprising va liquefying chamber,

an outlet valve, an outlet housing for said outlet valve, a wall separating the outlet housing from. the liquefying chamber and having a series of openings, therein, closures for said openings permitting predetermined adji'lstment ofthe volume of liquid passing from the liqueiying chamber to the outlet housing, a high pressure casing having restricted communication with the outlet housing, an inlet pipe leading to the high pressure casing, a discharge pipe leading from the high pressure casing to the top of the liquefying chamber, and a high pressure valve normally closing communicationbetween the high pressure casing and the discharge pipe and operable automatically in advance of the outlet valve to permit passage of liquid from the high pressure casing to the discharge pipe and to the outlet housmg. I

5 A dispensing apparatus forcarbonated beverages comprising a liquefying chamber, an outlet valve, an outlet housing for said outlet valve having communication with the liquefying chamber, an operating device for the valve, a source of high pressure supply,

a normally closed valve controlling the high pressure supply and means controlled by said operating device for opening both said valves in predetermined relation and drawing a beverage in predetermined proportions irom'the liquefying chamber and from the high pressure supply.

6. A dispensing apparatus for carbonated beverages comprising a liquefying chamber, an outlet valve, an outlet housing for said outlet valve having communication with the liquefying chamber, a high pressure casing having restricted communication with the outlet housing, an inlet pipe leading to the high pressure casing, a discharge pipe leading from the high pressure casing to the top of the lique'tying chamber, a high pressure valve controlling passage of'liquid from the high pressure casing to the discharge pipe, and a valve operating device which when moved acts initially to open the high pressure valve and subsequently the outlet valve, said operating device being positionable to hold the high pressure valve open and the outlet valve closed. 1

' 7. A dispensing apparatus for carbonated beverages comprising aliquefying chamber, an outlet valve, an outlet housing for said outlet valve, a wall separating the outlet housing from the liquefying chamber and having a series of openings therein,.closures for said openings permitting predetermined :i'ddistiiient of the Vol'u'ni of liquid passing from the hquefying chamber to theoiitlet hbiising', a; high pressure casing having an inlet chamber and {i discharge passage, inlet and discharge pipes communicating respectively thefewith; i Valve slee'v extending Within the casing from the outlet housing in thdinlt charr ihi and having pbfts prrnitting coinii unicgition with the dischz irge passa :phi h pressure valve movable ndwise (55 m sleeve mdnormm1 1dsing its inner end fo prevent movmenfi of liquid from he 

